The most complete petroleum calculator for professionals in the oil/gas industry
5.00·127 reviews·1,000+ downloads
About Oil Calculator Pro
Oil Calculator Pro is a tools app developed by MooringMarineConsultancy.
Download Statistics
Oil Calculator Pro has been downloaded 3.2 thousand times. In the last 30 days, the app was downloaded 26 times.
User Ratings
Oil Calculator Pro is rated 5.00 out of 5 stars. The rating is based on 130 ratings.
App Information
Oil Calculator Pro costs $9.59 to download. The APK download size is 5.49 MB. The latest version available is 1.5.8. The last update was on March 3, 2026.
Technical Requirements
Oil Calculator Pro requires Android 4.0.3+ or higher. The app has a content rating of Everyone. The app has been available on Google Play April 2014.
Description
A professional petroleum calculation tool built for terminal operators, inspectors, surveyors, and oil & gas engineers.
Designed for : • Fast data entry • Clean workflow • No subscription • One-time purchase • Works offline Now also available for desktop!
For tutorials/manual, please visit: https://mooringmarineconsultancy.wordpress.com/user-manuals-for-oil-calculators/
IMPORTANT NOTE: for users who have problems with the keyboard (dot or comma not showing): some of the newer Android devices seem to have a bug in the soft keyboard, that results in the absence of dot / comma on the number keypad. The solution is to install an alternative keyboard (such as the Google keyboard).
Refund Policy
Refunds are processed according to Google Play’s refund policy. Immediate refunds are typically available within a short period after purchase via the Play Store.
Oil Calculator Pro is the Pro version of Calculator for Oil enhanced.
The app uses the ASTM tables / formulas to calculate weights and volumes based on entered density or API, obs volume, pressure and temperature, and calculates the following: - VCF - MTons (vac) - MTons (air) - GSV (M3 @15) - BBLS (@60) - LTons - Gallons
Contains a blending tool for viscosity, flash point, pour point, and temp/viscosity calculation.
Contains an export utility so the user can copy calculator screen data into a database for future reference.
The app has both ASTM 1980 and 2009 tables, and users can select which table to use for the calculator in the settings screen. Users can also select whether they want to calculate using SI Metric or Imperial units.
Oil Calculator Pro gives you direct access to the following ASTM tables for calculations concerning Crude Oil, Products, Lubrication Oils and Special Applications: - table 5 A/B/D, 6 A/B/C/D, 23 A/B/D, 24 A/B/C/D, 53 A/B/D, 54 A/B/C/D, 59 A/B/D, 60 A/B/C/D In addition to that, the following NGL/LPG tables are directly accessible (version 2004): - table 23E / 53E / 59E Furthermore, the calculator makes use of the following tables for conversions and calculation of CTL/CPL: - table 24E / 54E / 60E
Precision can be changed using the settings screen. Settings are saved in the app so that when you use the app next time it will calculate with your chosen settings. The precision setting for VCF is also set automatically when the user selects 1980 or 2004 tables, but this can be overridden.
Densities can be entered in the following formats which are automatically recognized: e.g 0.9664 / 966.4 / 9664
The app can calculate for crude oil, black and white products, lubrication oils and special applications, and input can be changed between density in vacuum at 15 and 20 deg C/ API / relative density / observed density, and degrees Celsius / Fahrenheit by touching the applicable buttons. Also when using 2004 tables, the input of pressure is enabled and can be switched between psi, kPa and Bar.
The user has the choice to calculate using observed M3 / M3 at 15 / observed Barrels / Barrels 60 / Metric tons air/Metric tons vac / Ltons / Gallons. All other parameters are then calculated accordingly using the entered temperature, density (and pressure if 2004 version table is used).
The user can also calculate weights of LPG / NGL, using either density @ 15C, relative density @60F, observed density or density @ 20C.
There is also a screen with conversions used in LPG / NGL, as well as an LPG density calculator.
For products, lube oils and crude there are two tools for calculating final density when blending two components: one tool that calculates the blend after loading the 2nd component, and another tool that lets the user choose the two components and advises which component to load first, based on density 15C or API 60F and actual temperature of the components. The blending tools also apply volumetric shrinkage as per API MPMS Chapter 12.3
Recent changes: Updated link in About, to show our blogpage with instruction manual
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Great and useful app. I have been using this app in my day-to-day cargo calculations. I am a chief officer onboard a product tanker and all I can say is that it helps me a lot. Thank you and hoping you to develop more apps for seafarers.
★★★★★Michaelcef Miranda· Nov 7, 2015
Very useful I am a chief officer onboard gas carrier, and it was a great help.
★★★★☆Ipa Pta· Sep 8, 2017
Please add dropdown list of VCF methods (whether table 54 A/B/C) in quantity calculator tab. Since I want to compare GSV results when using 54, 54B, and 54C. Anyway it is great apps.
★★★★★Radu YT· Apr 26, 2021
The app is very good. Actually is the best. However, there is a problem. I installed on my phone. Then I tried to install it on my second phone. It asked me to pay again. Even I believe is not ok, I paid again. I was charged again but I cannot install. It says the app was already paid. So I was charged 2 times, but I cannot install on my other phone. Last edit : everything is fine now. I had same accounted, but it took longer than expected to update my second phone. Thanks.
★★★★★Nolie Calmerin· Apr 25, 2025
Very useful tool for speedy calculation during bunkering
★★☆☆☆Kaputa Akida· Aug 18, 2016
Marine cargo surveyor I purchased the new version but it stucks, in v.c.f it gives three digit value with up five to third digit after decimal places e.g. my factor is 0.9889, but it gives 0.989 even if you change how many digits
★☆☆☆☆Kenny· Jan 19, 2026
Need 54c vcf table but this app doesn't have yet cannot refund. Please put in description what you app can do, so that people know what they are paying for and refund policy
Google Play Rankings for Oil Calculator Pro
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Technologies used by Oil Calculator Pro
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